Batteries with both terminals on the same side, like a 9V or a 12V battery, aren't too common, but they're common enough that it's worth remembering that before you recycle them or toss them in the trash, tape over the terminals. Conductive material across both terminals can easily create a short, and then a fire.

The video above is actually from a kids and family show that offers up PSAs like this on a regular basis, but the tip itself comes to us from the folks at DIYPhotography.net. They remind us that 9V and 12V hobby batteries are still frequently used in remote triggers and other electronics projects, and if you're about to dispose of one with the recycling or the trash, make sure to cap off the terminals with some non-conductive tape so they won't short on whatever they may touch in your trash bag or recycling bin.

It might sound far-fetched, but the video above describes the story of someone who actually did lose their home in a fire because of this specific cause, so if you can, it's a small thing to do every time you're finished with a battery (that can't be recharged, if you prefer to go that route) that can eliminate a very real risk.